Wiring-tack.



G. G. BLAKE.

WIRING TACK.

APPLICATION FILED SEPT.18, 1911.

Patented Feb. 13, 1912.

UNITED ME T OFFICE.

' CHARLES o. BLAKE, or BROOKLINE, nassncnusnrrs.

WIRING-TACK.

Specification of Letters Patent. Patented Feb. 13, 1912. Applicationfiled September 18,-1911. Serial No. 050,005.

To all whom it may concern:

Be it known that I, CHARLES C. BLAKE, residing at Brookline, in thecounty of Nor folk and State of Massachusetts, have invented certainImprovements in Wiring- Tacks, of which the following is aspecification.

The present invention relates to means for supporting insulated wires inposition on Wood surfaces or plastered walls, in such manner as to holdthe same securely without marring or damaging the wood or plaster andalso present an attractive appearance.

The invention consists of 'a wiring tack adapted to embrace theinsulated conductors of a pair, and consists of a metal plate having aninsulating lining and a nail or pin passing through the central part ofthe plate andlining, the parts being held together by frictionalpressure or with a suitable cement, all of which I will now proceed todescribe and point out in particular in the appended claims.

In the drawings which form a part of and illustrate the invention,Figure1 is a per.- spective view of the insulated wiring staple; Figs. 2 and 3are respectively top and side views of the metal plate; Figs. 4 and 5are respectively a top and side view of the insulating lining; Fig. 6 isa section on line w, w of Fig. 5 looking in the direction of the arrow;Fig. 7 is a detached View of the nail or pin; Fig. 8 is a view toillustrate the application of the staple; and Fig. 9 is a sectional viewillustrating a modification.

In the drawings, a is an oblong metal plate having its ends 1, 1 bent atsubstantially right angles; the central portion of the top part iselevated to form a ringshaped projection 2, which has a centraldepression 3 whose edges are drawn out thin forming a tubular orifice.The plate is formed in dies and is thus very cheaply made. Within theplate a is an insulated lining I; ma e from a ribbon of fiber or othersuitable material, while soft and easily worked in a mold, having itscentral portion folded or doubled over so that the sides touch or nearlyso, as 5, then turned over to form the tops, 9, 9, and again to form thesides 4, 4, and a pin forced between the sides,

centrally thereof to make a hole 7; at the nail or pin a is insertedinto the depression 3 and pressed downward through the straight hole 7,the parts are held together; the head of the nail rests in the.depression 3 and is held by its lower edges and-also by the walls 6 ofthe central portion 5, of the lining b which steadies the same.

By reference to Fig. 8, inwhich is shown a wire tack securing theconductors C, C of a pair to a support S,-it will be seen that thelining b prevents any contactbetween the metal parts of the tack and theconductors. I may, if I choose, cause the plate and lining to adhere toeach other. by means of interposed cement or sticky substance.

It is not strictly essential that the elevated portion 2 be formed onthe upper face of the plate, although it gives stability to the same indriving the nail, and Fig.9 shows a crosssection of a device in whichtheelevation 2 is left off, in this case the depression 3 may ext-endfarther inward to give support to the nail head.

The several parts may be kept in separate places and assembled whenabout to be used, but I prefer to assemble the parts and pack thecompleted tacks in boxes for sale.

I claim as my invention- 1. A wiring tack comprising a metal platehaving its ends bent over and downward with. a central opening throughthe metal, a nailor pin having its head supported in said opening, andan insulating lining covering the interior surface of the plate thecentral portion of which is doubled, perforated. and extending downward.forming a midway partition and embracing the nail or pin, as set forth.

2. A wiring tack comprising'a metal plate having opposite ends bentatsubstantially right angles with a central depression in its upperportion extending through the metal forming a tubular orifice, a nail orpin supported by its upper end in said depression, and an insulatinglining the central portion :of which is doubled and centrallyperforated, its sides being parallel and embracing a central depressionextending through the .metal, a nail or pin having its head supported insaid depression, and an insulating linfits snugly inside the platea,.'and when the I ing the central portion of which is doubled andperforated and embraces the nail or pin,:

as set forth.

4. A wiring tack comprising an oblong metal plate having. its ends bent'overand downward, a portion of its upper'surface being elevated andhaving a centraldepression extending through the metal, a nail or pinsupported by its upper end in said depression, .andan insulatinglining'the central portion of which is doubled and perforated, its sidesbeing parallel and embracing the nail on pin.

5. A'wirin tack comprising a metal plate right ang es, a portion of itsupper surface having a ringshaped elevation with a central depressionextending through the metal,

a nail or pin supported by its upper end in said depression, and aninsulating lining the 20 name to this specification in the presence of25' two subscribing witnesses, this fourteenth day of September 1911.

v Y CHARLES 0. BLAKE. Witnesses:

Gno. WILLIS Pn'mon, JoHN MARTIN;

